/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package org.jboss.netty.channel.socket.nio;

import org.jboss.netty.channel.AbstractChannelSink;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelEvent;
import org.jboss.netty.channel.ChannelFuture;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.socket.ChannelRunnableWrapper;

public abstract class AbstractNioChannelSink extends AbstractChannelSink {

	@Override
	public ChannelFuture execute(ChannelPipeline pipeline, final Runnable task) {
		Channel ch = pipeline.getChannel();
		if (ch instanceof AbstractNioChannel<?>) {
			AbstractNioChannel<?> channel = (AbstractNioChannel<?>) ch;
			ChannelRunnableWrapper wrapper = new ChannelRunnableWrapper(pipeline.getChannel(), task);
			channel.worker.executeInIoThread(wrapper);
			return wrapper;
		}
		return super.execute(pipeline, task);
	}

	@Override
	protected boolean isFireExceptionCaughtLater(ChannelEvent event, Throwable actualCause) {
		Channel channel = event.getChannel();
		boolean fireLater = false;
		if (channel instanceof AbstractNioChannel<?>) {
			fireLater = !AbstractNioWorker.isIoThread((AbstractNioChannel<?>) channel);
		}
		return fireLater;
	}
}
